Distorted thread locknut: Difference between revisions

Revision as of 02:14, 5 December 2008

Revision as of 02:32, 5 December 2008

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A '''distorted thread locknut''',<ref name="McMaster3139">McMaster, p. [http://www.mcmaster.com/#catalog/114/3139 3139].</ref> is a type of [[locknut]] that uses a deformed section of [[screw thread|thread]] to keep the [[nut (hardware)|nut]] from loosening from vibrations or rotation of the clamped item. They are broken down into three types: '''elliptical offset nuts''', '''centerlock nuts''', and '''toplock nuts'''.

Because these nuts are solid metal, they are effective in elevated temperature settings, unlike [[nyloc nut]]s. High [[Bolted joint#Property class|grade]] nuts are good up to {{convert|1400|F|C|abbr=on}}. High strength ellipticaldistorted offsetthread nuts cannot be used with low strength fasteners because the hard nut will act like a [[tap and die|die]] and destroy the threads on the fastener.<ref name="smith"/>

==Elliptical offset nuts==

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Cleveloc, a popular brand of elliptical offset locknut, is a registered trade name of Forest Fasteners.

==Centerlock nuts==

Center lock nuts are similar to elliptical offset nuts, except that they are distorted in the middle of the nut. This allows the nut to be started from either side.<ref name="McMaster3139"/>

==Toplock nuts==

Toplock nuts are also similar to elliptical offset nuts, except that the whole thread on one end is not distorted. Instead only three small sections of the thread are deformed on one end.<ref name="McMaster3139"/>

==References==